Bean cleaning and polishing machine.



No. 810,009. PATENTED JAN. 16, 1906.

B. E. WEMP.

BEAN CLEANING AND POLISHING MACHINE.

APPLICATION FILED SEPT. 30. 1904.

2 SHEETS-SHEET 1.

No. 810,009. 7 PATENTED JAN. 16, 1906. E. E. WEMP.

BEAN CLEANING AND POLISHING MACHINE.

APPLIOATION FILED SEPT. 30, 1904.

2 SHEETS-SHEET 2.

6 z @nucutnr gy gtt ornzgyd UNITED STATES PATENT OFFICE.

BEAN CLEANING. AND POLISHING MACHINE.

Specification of Letters Patent.

Patented Jan. 16, 1906.

Application filed September 30, 1904. Serial No. 226,615.

zen of the United States, residing at Oxford,

county of Oakland, State of Michigan, have invented a certain new and useful Improvement in Bean Cleaning and Polishing Machines; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to an improvement in a machine for cleaning and polishing beans, shown in the accompanying drawings, and more particularly set forth 1n the following specifications and claims.

Referring to the drawings, Figure 1 is a side elevation of the machine, showing interior parts in dotted lines. Fig. 2 is an end elevation. Fig. 3 is an elevation of the opposite end of the machine. Fig. 4 is a vertical sectional view on line 4 4 of Fig. 1, showing in dotted lines parts of the machine beyond the plane on which the section is taken.

The object of my invention is to enhance the value of dirty or weather-stained beans by removing the grime and stains by a wiping and polishing process hereinafter explained.

Referring to the letters of reference shown in the drawings, A is the frame of the machine.

B is a divided feed-hopper provided with adjustable slides b, controlling the delivery of beans from the hopper.

C is a vibratory frame supported by swing ing hangers c and c and provided with a solid metal or wood bottom C O is a screen divided by means of a central partition (3.

C is a tail-board divided by a partition and designed'to receive the beans as they are delivered from the hoppers.

D is a pitman connected with the vibratory frame C and operated by the eccentric D, mounted on the shaft E.

F is a feed spout or chute divided by a partition and designed to receive the beans as they are delivered from the tail-board C conveying them through the chute or hopper F to the horizontal spiral conveyer O. H is a vertical notched spiral conveyer. I is a divided spout to receive the beans when raised by the conveyer H, the side of the spout receiving them, delivering the beans on the corresponding side of the screen 0.

J is a chute with an opening J, through which the beans are delivered into the chute F from which they pass into the second horizontal conveyer G.

J 2 is a swinging damper 0r valve controlling the opening J, operated by a rockerarm J H is a second vertical notched spiral conveyer connected with the horizontal conveyer G, which delivers the beans as discharged by the horizontal conveyer onto the spout I from which they pass onto the other division of the screen C.

K is a chute designed to receive the beans as they are delivered from the screen the second time, conveying them into the delivery-spout L, through which they pass ready for the market.

M is the main driving-shaft, on which is mounted the driving-pulley M and the loose pulley M On the shaft M are bevel-gears N N, meshing with like gears N N, mounted on the shafts of the vertical conveyers H and H, respectively.

O is a driving-pulley on the shaft M, having a belt connection with the pulley P on the shaft P, on which are the bevel-gears Q and Q, meshing with like gears R and R on the shafts of the horizontal conveyer-s G and G.

O is a pulley mounted on the shaft M, driving by a belt connection the pulley E on the shaft E.

I will now proceed to further describe the operation of my invention, which will be readily understood. Bran or dampened sawdust is first introduced in sufficientquantities into the machine by way of the hopper B until after starting the bran is found to work u through the conveyers and is discharge onto the screen O'. If the beans to be cleaned are in a very dirty or badlystained condition, it may be necessary to ass them through both of the conveyers beore all grime or dirt is removed. In this event the beans are placed in the right-hand hopper, as viewed in Figs. 2 and 4, and the slide I) raised so as to permit the beans to drop out onto the tail-board C The frame C, on which this tail-board is mounted, is given a vibratory movement through the action of the pitman D, connected with the eccentric on the shaft E, which causes the IIO beans to move to the edge of the tailboard, when they drop through the feed-spout F and are conveyed by the chute F to the horizontal conveyer G. This conveyer forces them through the bran or sawdust packed around it until they are received by the vertical conveyer H, which forces them upward through the mass of bran inclosed within the cylinder of the conveyer and out through the spout onto the screen C. conveyer in the manner shown the speed with which the beans progress upward is materially retarded, thereby enabling the bran to more effectually clean and polish the beans as they traverse the conveyer-cylinder. As the beans with the bran are forced out from the conveyer onto the spout I, by which the beans and the bran carried with them are de livered onto the screen C, the vibratory movement of the frame C causes the bran and beans to separate through the screen, the bran falling to the solid bottom C from which it slides through the spout C into the chute F, by which it is returned to the spiral conveyer. The beans travel down the right-hand side of the screen C, dropping into the chute J. They then slide through the opening J .(when the damper J 2 is open) down through the chute F by which they are deliveredinto the horizontal conveyer G.

This conveyer forces them forward through the mass of bran or sawdust surrounding it, delivering them into the vertical conveyer H, where they are gradually forced upward, as before, onto the s out I, by which they are delivered onto the eft-hand division of the screen C. The separation of the bran or sawdust and the beans forced out onto the screen again takes place, as before explained, the beans, however, being delivered onto the chute K, down which they pass into the de livery-spout L, from whence they pass ready for the market. If the beans are in a fairly good condition, it will be necessary to pass them but once through the bran to secure the required cleaning and polishing. In this event the damper J 2 is turned so as to close the opening J in the chute J. It will now be seen that as the beans pass from the hoppers onto the tail-board they will be directed down the spout F through the chutes F and F into the conveyers G and G, where they are received by the conveyers H and H, by which they are raised and delivered into the spout I and onto the screen C, down which they pass to the chutes K and J, and,

as before explained, the opening J in the chute J being closed by the damper J the beans from both chutes J and K will then ass out through the delivery-spout L ready for the market.

When it is found necessary to remove the bran from the machine, it may be discharged into a suitable receptacle as it passes from By notching the 1 the bottom 0 of the swinging frame C on its passage to the spiral conveyer.

Having thus described my invention, what I claim is 1. In a bean cleaning and polishing machine, a hopper, a spiral conveyer suitably inclosed, suitable chutes for delivering beans from the hopper into the conveyer, a screen for receiving and separating the beans from the polishing agent when discharged by the conveyer, a chute for receiving the beans and returning them to the conveyer for a second passage through the polishing agent, and means for receiving the polishing agent when separated from the beans by the screen and returning it to the spiral conveyer, substantially as described.

2. In a bean cleaning and polishing machine, a multiple-feed hopper, a plurality of horizontal conveyers, a corresponding number of vertical conveyers suitably inclosed, means for delivering beans from the feed-hopper to the horizontal conveyers, a screen to separate the beans from the polishing agent as they are discharged by the vertical conveyer, suitable chutes to dischargethe beans from the machine when separated from the polishing agent, and chutes to return the polishing agent back to the conveyers, substantially as described.

3. In a bean cleaning and polishing machine, a multiple-feed hopper, a plurality of horizontal conveyers, a corresponding number of vertical conveyers, means for delivering the beans from the feed-hopper to the horizontal conveyer, a screen for receiving and separating the beans discharged from the vertical conveyer, a chute to receive the beans discharged by the screen, means for returning them to the horizontal conveyer for a second passage through the polishing agent, and means for returning the olishing agent to the conveyers, substantial y as described.

4. In a bean cleaning and polishing machine, a multiple-feed hopper, a plurality of ERNEST E WEMP.

WVitnesses:

C. O. WHITCOMB, W. D. ROBINSON. 

